Can Seafoam cause engine pinging?

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10-05-2012, 10:09 PM

#21

onederful100

6th Gear Member

Join Date: Jul 2007

Location: Honolulu, HI

Posts: 6,130

at least the pinging is gone.
thats good.

10-06-2012, 06:48 AM

#22

Nuke

6th Gear Member

Join Date: Jun 2007

Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)

Posts: 16,182

Quote:

Originally Posted by Sirsilent

Alright I filled it up with fresh gas and the pinging seems to be gone now.
I still think the pinging had something to do with the Seafoam because I always get gas at the same brand name gas station.

I won't discount the SeaFoam being at fault but a 1 qt bottle shouldn't dilute 16 gallons enough to cause a drop in octane that the PCM can't keep up with. Just seems odd... My guess is still the initial tank of fuel. Not every delivery to the same gas station has the same octane level and same ethanol content.

But I, too, am glad that it's resolved.

10-06-2012, 07:19 AM

#23

snikr

1st Gear Member

Join Date: Aug 2011

Location: VT

Posts: 52

I've had that happen as well. Stop at the same station and every once in a while I would get a tank of gas that just didn't run right.

10-06-2012, 01:01 PM

#24

ski

4th Gear Member

Join Date: Mar 2006

Location:

Posts: 1,470

Quote:

Originally Posted by snikr

I've had that happen as well. Stop at the same station and every once in a while I would get a tank of gas that just didn't run right.

+1
I load up at the same Sunoco station, and once had a pinging problem after filling up there. Pulled the timing until the pinging stopped, drove conservatively for a few weeks(felt like a few months) until that load was almost gone, filled up at the same place, reset the timing, and no more pinging.
On the other hand, I've used Seafoam numerous times, and never had any pinging.

Last edited by ski; 10-06-2012 at 01:06 PM.